Stopper-valve.



PATENTED JAN. 9, 1906.

A. T. DUNCAN.

STOPPER VALVE APPLIGATION FILED ocT.17.19os.

I lnveror,

Witnesses Attorneys 1 UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Jan. 9, 1906.y

Application fired october 17, 1905. serai No. 283,181.

To all whom, t Ntftg/ concern.'

Be it known that I', ARTHUR THOMPSON DUNCAN, a citizen of the United States, residing at Clinton, in the county of Henry and State of Missouri, have invented a new and useful Stopper-Valve, of which the following is a specification.

This invention relates to an improved stopper valve or closure which is capable of being used for a great variety of purposes 5 and the objects of the invention are to simplify and improve the construction and operation of devices of this class.

/Vith these and other ends in view, which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the accompanying drawings several simple and preferred forms of the invention have been illustrated; but it is to be unnderstood that no limitation is necessarily ignade to the precise structural details of the forms thus illustrated, but that other changes and modifications within the scope of the invention may be made when desired.

In the drawings, Figure I is a side elevation showing one form of the invention previous to the insertion of the packing member which constitutes a portionof the device. Fig. 2 is a sectional elevation showing the form illustrated in Fig.v 1 complete and mounted for operation as part of the bottle-stopper'. Fig. 3 is a vertical sectional view taken on the plane indicated by the line 3 3 in Fig. 2. Fig. 4 is a horizontal sectional view taken on the plane indicated by the line 4 4 in Fig. 3. Figs. 5 and 6 are side elevations of a modified form prior to and after the insertion of the packing member. Figs. 7 and S are side elevations illustrating still another form prior to and after the insertion of the packing member.

Corresponding parts in the several figures are indicated throughout by similar characters of reference.

The invention in each of its several forms includes an interiorly-tlneaded cap l, which in each of the several forms has been shown as provided with exteriorly-milled portions 2 to facilitate the manipulation thereof. This cap is adapted for kengagement with an exteriorly-threaded tubular member 8, the extremityf which constitutes the opening that is to be stoppered. In order that it may not be necessary to remove the cap from the tube in order to uncover the openingat the extremity of the latter, the side walls of the cap are provided with oppositely-disposed apertures.` These aper-V tures, as shown in Figs. 1, 2, 3, and 4 of the drawings, may be of approximately semi-oval shape, with straight upper edges, the openings being designated 4 and their upper edges 5. In Figs. 5 and 6 round holes 6 have been shown, and in Figs. 7 and 8 the openings or apertures (here designated 7)V are square, or approximately so. It is obvious that by loosening the cap upon the tube an exit from the latter is provided through the side openings of the cap, but as it is essential that an absolutely tight joint be provided when the cap is tightened upon the tube there is provided a packing member which is in the nature of a strip of leather S, which is extended through the opposite openings in the sides of the cap and is seated securely against the upper edges of said openings. The shape of this strip should preferably, if not necessarily, accord withthe conformation of the side openings in the cap g lbut in every case it is essential that the ends of the strip should be extended into and seated in both the opposite side openings of the cap. I/Vhen thus seated, the packing-stripwill of necessity follow the movements of the cap, and if perchance the packing-strip should become cemented to the extremity of the threaded tube for which it cooperates to form a closure it will become readily detached by the twisting movement given to the cap in loosening the latter upon the tube.

This invention, as will be seen from the foregoing description, is of extreme simplicity and may be manufactured at a tril'ling expense. Its range of utility is wide, and a special advantage resides in the fact that a stop-V per-valve characterized by the present improvement may be manufactured of very minute dimensions and in such a manner as to form an absolutely air, gas, and moisture proof stopper.

Having thus described the invention, what is claimed is- 1. A stopper-valve includ ing an interiorlythreaded cap having side openings7 and a packing member extending into and seated in said openings.

2. The combination with an exteriorlythreaded tubular member, of a threaded cap fitted thereto and having opposite side openthreaded tube and having its ends extended 1o into the opposite side openings of the cap.

In testimony that I claim the foregoing as my oWn I have hereto affixed my signature in the presence of tWo Witnesses,

ARTHUR THOMPSON DUNCAN.

Witnesses:

GEO. S. HOLLIDAY, JAS. A. WELLs. 

